First off, it was a JOKE. And has been said by Andrew, it didn't come off as anymore harsh than people talking about banging your 15 year old sister-in-law. Personally, I think that's pretty sick, but whatever floats you child molester's boats is fine by me.<-----I'll point this out now, that this is sarcasm, and intended to be humorous. I don't think(or hope) these guys really want to get on a 15 year old girl.
But if we want to talk about sense of humor, the Mom jokes stopped being funny, right after the very first Mom joke was implemented...... in 1988. Now Dave, if you honestly think I was being serious about the sister/mom thing, then you need to take a breather. Congrats on the adoption/guardianship, as it's a big step to make, and I'm sure will be very rewarding.
If you can see past the BS, awesome. If not, I'm sorry.
Mark
P.S. You're still twice the jackass.