An erect penis... When a
guy is hanging out with a girl and she leaves the room for a
minute, he pull his dick out and
get it hard so when she comes back he can offer her a "chair"
She might say "aww thanks babe, so thoughtful! you pulled up a chair for me, now I have somewhere to
sit"
Or if she doesn't notice right away he might say "I pulled up a chair for you, have a seat. You'
re welcome"