PokerStars No-Limit Hold'em, $1.00 BB (5 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

Hero (Button) ($153.25)
SB ($106.05)
BB ($101.50)
UTG ($100)
MP ($100)

Preflop: Hero is Button with 3, 3
2 folds, Hero bets $3, SB calls $2.50, 1 fold

Flop: ($7) K, 3, 10 (2 players)
SB checks, Hero bets $5, SB raises to $15, Hero?


I feel like the only hands raising there are QJ, 1010, slow played KK, 1010, and whatever % bluffs he has here. I feel like a call here is best, to let his bluff range continue.

Player is a decent amaterur only playing a few tables. Doesn't seem fishy, but he certaintly isn't a reg. 23/16 guy, 3bet twice in 120 hands