Staas is used to such mocking and doesn't take offense if offense isn't meant. I'm sure they'll get on fine. He'd have to really get to know Snake first, before agreeing to that. He doesn't trust just anyone with his babies.
Sam will take forever to figure out that he is being flirted with, unless Snake makes it very very obvious. Like. Tells him he's flirting. He's kind of oblivious. Once he realizes it though, he will get all awkward and weird. A little bit because it's a bloke, but more because someone's flirting with him. He never knows what to do with that.