Brother Uses My Dirty Clothes As Cum Rags

So This all started about 3 months ago I’m in 18 and my brother 17 he Isn’t hot or popular as his big sister a varsity cheerleader so when i would get from cheer practice I would find my panties I took off or the dirty ones from my hamper with cum in them always in the crouch i also kew it was my brother he would use my dirty panties as his cum rags so on day after cheer practice I go home change out of my clothes and shower I had no new clean panties I left on the floor was going to put them back on after when I’m done in the shower I open the door to my room and find my brother masterbateing with my panties and saw his balls empty out into the crotch of my panties I yell at him to get out and that I was going to tell mom on him he throw the panties at me and I caught them and drop them in discuss because them cum was now on my hand it was the first time I had ever felt cum on my hand it’s warm and sticky and kind of hot I then pick my black thong off the floor and took of my towel and lay down on bed. And began masterbating with them until I orgazum in them it was so hot to fell cum on my pussy so fastfoward 2 weeks after chear practice And I get home and shower as im walking back I Opean the door and find my brother masterbating with my dirty panties he hadn’t cum yet so I told him to stop and he was about to get up but I told him to stay their I droop my towel and lay down on the bed and told him to fuck he didn’t want to do it because it was weird and wrong I then told him it was weird and wrong to use my panties as his cum rag as I find a little cum had leaked out of his cock on the panties I. Grap them and licked them and then told him it was ok to fuck me so he was all ready hard from my body so I spread my legs and he then removed his pants and We to have sex when he cumed inside of me it was the most wonderful and host thing I ever felt I. Me after we just lyed there and we’re like amazed because we both took our vrigntys that day after them we began to have sex with each other regally sometime when our parents aren’t home and always after cheer practice and the shower I love the way his cock feels in or his warm cum on my tits or I give him a blowjob with his warm. Cum in my mouth the problem is that We don’t use condoms and I think I’m pregnant what should I do it’s hot knowing my breast will have milk for him drink when we fuck