My cute and big-breasted little sister is weak-willed and can't refuse guys. She always dresses provocatively, so I, a virgin, can't help but get turned on by her panty shots and cleavage. I can't take it anymore and ask her to let me have her, she says 'since we're siblings, just rubbing is fine' and suggests we do cosplay sex. My sister's crotch gets wet quickly from the friction of my dick, and she starts moving her hips excitedly. In the end, I end up inserting it raw and cumming inside her! Then my sister's true slutty self comes out, demanding crab lock and insisting on in-out cum!
