Roll wank

When a rather large woman pushes together two rolls of fat, the man lubes up, thrusting his cock between the rolls of fat.

Jim: hey mark, did fatty stay over again last night?
Mark: yeah she did and we tried something new.
Jim: oh yeah?
Mark: yeah, a roll wank. It's a bit like a tit wank . She pushed together two of her rolls of fat, I lubed up, and thrusted my cock between them. I'd highly recommend it.

Jim: think I'm ok mate