No, but it's kind of expected at that point. You shouldn't be legally obliged to ask explicitly. Hell, someone drunk can even say yes and still pull the "I was drunk and they took advantage of me," card. Explicit consent shouldn't be a legal necessity because somewhere through the night, maybe when you started getting off with each other or when they came back to yours, hell it was probably when they took their pants off, there was consent.CaptainKarma said:So if I get naked and make out with someone I'm obliged to sleep with them? What the hell is wrong with you? Hell, even if you have sex with someone once that doesn't obligate them to do it again.
If you have your pants off and don't wanna have sex then say no, but don't get pissed that they expected it. That's all I'm saying: if you don't wanna do something then say no, don't expect them to be able to read your mind or get pissed when they make assumptions.