8-handed, I'm in the CO, there's a straddle on. Folds around to MP on my right who opens to 12, I look down at AA and pop it up to 35, folds back around to MP who calls.
MP has been relatively tight in the couple of hours I've been playing, not uber-nitty but not getting out of line at all that I've seen. He's on a stack of about 400, I cover.
Flop comes out 987r.
MP checks, I put out 50, and MP relatively quickly raises to 150.