Yeah, the family thing is fun fantasy, actually my perverted wife turned me on to it, she loves the 'sex smell' from her daughters panties (my step-daughters) and brings them to bed, and talks dirty, "here, smell their pussy, doesn't it smell amazing, hmmmmmmm which smells most slutty...?" and loves to jack me off with her daughters panties, and she has this huge erotic fantasy of involving her 18-year old daughter in sex.... one favorite, Mommy calls Wendy into the living room before school, when she is ready in her "slutty school uniform".  Mommy gets Wendy to spread her legs, and bend over... mommy lifts her skirt over her back, and tugs down her fresh white cotton panties a bit, spreads her ass a little, and starts fingering her juicy tiny pink pussy and tight butthole, lightly spanking her cute white ass cheeks a bit, until she starts moaning lightly, getting her pussy all wet and ready for daddy.  Mommy's fantasy is to then rest her head on the small of Wendy's back while she spreads Wendy's ass cheeks wide open for Daddy.... I then ease my thick cock into her in tight pink pussy and slowly fuck her until Wendy's loving, then slowly do the same with her very tight ass (lots of lube), and then ease my cock into mommy's wide open mouth, still on Wendy's back, taking turns on all three holes, pussy, ass, mommy's mouth.... The best bit is that when I finally cum in Wendy's pussy or ass (or both!) mommy gets to take her time on knees enthusiastically licking the cum out of Wendy's holes.... We all kiss and cuddle.  

Wendy, her cheeks glowing, then pulls up her white panties, a bit flushed, and heads off to school...with a bit of daddy's cum still trickling down her thighs, her ass and pussy still damp from mommy's tongue!  lol ;)

All in fun, just a fantasy of course! Maybe it'll happen one of these days... ;)