My brother is starting to creep me out

I am 18 and my brother is 13. We have been very close siblings our whole life, but now that he's going through puberty he's been creepy. He always makes sexual jokes towards me, and sends me suggestive texts in a joking way. Today he said I should show him my breats and it creeped me out. He says it in a way that could be taken as jokingly, but I'm starting to think he might be serious. I'm just freaked out

'Wow that #######1 should learn a lesson. Well honestly as a 'male' human, I aslo fantasized about my cousin's body. Well I did take pictures of them and enjoyed it. Sorry but many men do that. Not everyone.

Anyway you should make him stop thinking about you.
If I were you I would beat the $#%^ out of him.
But if he is stronger than you, you should teach him that is very wrong. Maybe take him to church and talk to priest or whatever. But talking to your parents can make him feel angry at you because he doesn't know you actually hate sexual relationship with him and he trusts you as more than best friends.

So try to talk to him seriously. Don't say about his fault but just talk that you don't want to have sexual relationship with him.don't taunt him.

Saying no is very important thing in life. You will have more relationships than you ever had untill now andyou won't like some of them.

Start from Making him clear that you don't want to hear sex joke anymore.

Seriously tell him that he needs to stop or he will get in trouble.
If you confide in a parent to help straighten him out, you don't have to go into details that might embarrass you.
Just say to the parent that it makes you feel uncomfortable. That should be enough to get action.
Best of luck to you.

Talk to him, he respects you and your views. Be sure you tell him that it is normal and natural for a boy his age, and in his years go come, to have sexual thoughts about girls. But also be sure he understands that when these thoughts are about his sister they are disordered. And share this link with him. It's never to early for a young man to understand the pain of diordered love.

*mod edit*

Good luck

talking your parent willcause more problem. they will take action and it will make him angry or even dangerous

if you did that i recommend you to be with somebody when you are alone at home.

The OP has given no indication that this might escalate into a dangerous situation for her. If she fears retaliation (violence/retribution) from her brother, this needs to be taken into consideration as well.
She needs to be safe.
Are the parents in charge and can control this inappropriate kid? If not, does the OP have access to a social worker or law enforcement resources if the need arises?
I don't have this information, but it needs to stop here or this brother will continue to do this and might begin harassing other women.
There is a very low tolerance for sexual harassment in society, domestic, institutional, workplace or anywhere. As it should be.
This 13 year-old needs to learn limits and boundaries now. If he is allowed to get away with it this time, then he will likely get worse.
It is harassment.

As someone who has been the custodian of a penis, testicles and a lot more testosterone than females have for 59 years now, the is a simultaneous recognition of family relationship precluding appropriate sexual attraction and the fact that when we hit puberty all of sudden we are overwhelmed with the desire to see the genitalia and breasts of women.
I had two older sisters and one younger who shared the bathroom with me. There was a door directly from the bathroom into their room (the other door into the hall) and for some reason, the lock on the door into their room never functioned.
My oldest sister was absolutely aware of how powerful her body was in attracting the attention of guys and would push our conservative parents limits to maximize her "tease" quotient. The sister between her and me was even better endowed, but was terribly self conscious of the breasts that always seemed to arrive at her destination substantially before the rest of her. She would never flaunt herself.
I shouldn't have to even mention that my first view of a mature woman (after my mother, but that had been years by the time I hit puberty) was my oldest sister. If she had a choice between grabbing the robe right next to her or prancing through the house naked, she chose the latter.By the time I was 15 she seemed to have a sixth sense of when I would be in the shower as she would almost always charge into the bathroom to sit on the toilet. While I never felt tempted sexually by her, I certainly reacted completely and obviously to her body, something she would comment on and laugh. If someone said something to her about her behavior being inappropriate, she would twist it into an argument of, "We're bother and sister, he shouldn't react like this."
In a conservative religious home, parents prefer to avoid discussing sexuality I grew up with the notion that men wanted sex and women tolerated it as part of the marriage relationship. If I was taking a bath, I would be able to see my sister lying on her bed naked playing between her legs and making intense physical movements. I was in my twenties by the time I realized she had been masturbating and that it was something a lot of girls and women did regularly. The fact that She would do it while maintaining eye contact with me in the tub through the mirror that somehow had been located in the perfect location for me to monitor her activity and her to monitor me in the tub seemed to be a simple coincidence. I would usually do my best to shut the door into her room complete as I started my bath, but she would always come to brush her teeth, her hair, fix her makeup or use the toilet and the door would be left about 1/4 open.

What all this adds up to is that a brother will have the same natural reaction to the body of his sister and the same desires to see and experience it as he has for all other women. Lewd and disrespectful comments are a way of expressing this in a way that covers his own feelings of guilt. They also may help insulate the experience emotionally for him, turning it into a strictly physical/sexual experience rather then the sexual activity that accompanies love in a healthy relationship between companions.

I would suggest you deal with it in the way that is most comfortable for you. It will helpl if you always use the medical terms for your body rather than the vulgar terms. You might even explain to him that your "breasts" have the same function he experienced with your mother's - they will be the source of food for your children. They are "mammary glands" and are the source of the name for the entire class of "mammals" that provide milk for their offspring. Maybe you can become a pioneer in desexualizing breasts a bit from the role they fulfill in society today. Your vagina is the door through which his nieces and nephews will enter the world. Never use the words "tits" or "pussy" to describe your body in front of him, those terms carry heavily loaded sexual meaning. If he refers to your body with those terms, pull him up short immediately and explain to him that he might refer to his wife's anatomy using those terms, but it's inappropriate and disrespectful to use those terms when referring to your anatomy. This will make that barrier between the two of you a little stronger, maybe even strong enough to overcome the power testosterone has to prevent the brain from functioning properly.
By the way, my oldest sister is on husband number 6. She got pregnant before she was married. She has always been excited by the "game" between men and women during the infatuation phase of a relationship. I love her with all my heart and soul, but I experience deep sorry to know that she will never experience the depth of love my wife and I enjoy after 38 years of marriage.
I made the mistake once, right after we were married of referring to my wife's breasts as "tits". She has breasts and a vagina and hey are at least as attractive and exciting to me as any others out their in the world. More than that, after 38 years I feel a responsibility to make sure nobody would speak about her in terms that she would find offensive. After all, as we become "one" they are also mine!

Tell him straight out, that it is creepy, and inappropriate. Siblings are not supposed to have sexual relations. Well I mean if it is consensual and harming no one, I guess it is okay, but thats not the case with you. Creepy yes. Tell him to ###$ off lol