Father and son want to know whose dick is bigger, not to do puzzles

I shared my boyfriend with my daughter, now I'll share my sperm in her mouth

Friend girl, you say your brother has a great dick? Go ahead, prove it

So my daughter won't get dumped by her boyfriend, I'll teach her how to fuck so he'll freak the fuck out

It's a good thing I'm not a sibling. I can fuck my girlfriend and sister in peace