Sex is generally very fun. At least it is as he remembers it, and it's been fun so far with Tony. Keeping that calm upper hand isn't as easy when Tony returns the tease, though. They're fairly equally matched intellectually and have separate strengths as Avengers, but when it comes to sexual experience, Bruce is way out of his league.

"Uh... yeah." He briefly gnaws on his lower lip and leans back enough to see Tony's expression. "Never done that before." But he's absolutely not interested in ruining their already bizarre alien vacation with a broken condom. "How patient are you feeling?"