"Hmm? Mmm! What's this ticklish feeling?" Why is my sister sucking on my dick? And she's even doing it hands-free, which is all the rage now! Man, too much porn watching, I guess! But that's not even the issue here, "Ahh, it feels too good!" Sorry, but as a brother, I've lost all dignity and got an erection. "Eh, why are you holding a condom in your mouth? You just want to put it on with your mouth to excite your boyfriend?" Hmm, well, if that's the case, I guess I could help out... right, since you're using a condom, it should be fine, haha.