Maybe he borrows a strap on from one of his bunnies and then fucks all the chicks.
And as for the question of not fucking these girls..do you really think if someone has ten of these big boobed girls around them prancing in their bikinis they would not get a hard on?
Dude even a cadaver will get an erection looking at these chicks.And frankly i don't think Hefner's dead!!Maybe it's a miracle of plastic surgery,maybe it's a brand new dick?!