Biggie has completely hairless armpits and he's a creep about them.
He loves getting them scratched or rubbed. Both the boyfriend and I have fallen victims to forcible armpit-rubbings while we are sleeping. We often wake up intimately stroking his pits.
It's incredibly perverse and it shames us.
Biggie loves it so much that we never say no.
However, he does not enjoy a flubbering in them.