Hah, came here to post about these guys. She's very much into playing with a soft, flaccid cock but she also says several times that it's even better when it's uncut.
That first link is like an instructional video altho' there's a lot of incidental chat. The sex action doesn't start until after 5 min.
As SWFF says, there are several mentions:
6:00 - she squeezes his cock hard enough to push it into his body and then mispeaks by saying that she doesn't know if an uncut penis would behave the same before deliberately pinching his foreskin together;
7:55 - she mentions having "pulled at the skin" and then proceeds to play with his foreskin altho' it's more silly than erotic. Then she says that they're fun to kiss when uncut and plays another game with his foreskin;
Then there's a break until about 14:00 when she mentions kissing his foreskin again;
15:45 - more talk and play before she sticks her tongue under his foreskin.
