Jack-off Squire
A Jack-off Squire is a guy who'll give you a hand-job if you're willing to take one in return.
He said, 'I'll give you a hand-job if you let me jack off later.'
She's a Jack-off Squire, and she'll do it if you let her have a hand-job too.
He's a Jack-off Squire, and he'll swap hand-jobs if you let him jack off.