Here are some tips for guys on a date with a woman for the first time when it becomes sexual in light of the Aziz Ansari and Grace thing. Whether or not you think the thing with Aziz was technically assault, the dude was not smooth and the whole thing was awkward, and you do not want to leave your date feeling violated. Here are some things to avoid that:
Go slow. There will be plenty of time for fast passionate sex later when you know each other. Now is not the time to rush into it and make missteps or go at a pace faster than she necessarily wants.
Ask permission. The burning man community is really big on getting verbal consent. Some people think this isn't sexy. What's not sexy is doing something the other person isn't necessarily into. Do not just grab a woman and kiss her unless you're absolutely sure it's wanted.
Seriously, go slow. One of the things that I hate are those forceful 'passionate' kisses that feel like my spine's being pushed in half. It makes me feel like the man is desperate for sex and thinks I'm way more into it than I actually am. There will be plenty of time for passionate kisses. You're still trying to figure out what each of you likes. Diving in and kissing someone as hard as you can just says that you don't give a fuck what they think and assumes they're at the same 'level.' This is a huge lack of empathy and foresight.
NOT EVERYONE LIKES YOUR KINKS. If you want to do something that's not normal, please for the love of god ask first. I know BDSM is mainstream, but not everyone likes to be tied up or spanked. If you spank someone or call them a slut without asking them if they like it, what you are telling them is that your wants are more important than their comfort. Same goes for things like shoving your fingers down someone's throat (Which Aziz allegedly did) which is oftentimes not comfortable and/or sexy for many people.
Porn is not real life. Women in porn often act like passive dolls just waiting for men to shove them around. Real sex is a symbiosis of two people who want each other and as such they should both coordinate in the act. It is not your responsibility as the man to shove the woman's face onto your cock or do rough porno moves. I have met many men who think that they're putting on an act for a third party. Nobody is watching. You don't have to prove that you're 'good at sex' for an invisible camera. The woman is not a doll. She is supposed to be your lover.
I don't care if you're a slut that has sex with 10 women a week. Don't treat women like trash or an object that is solely for your pleasure. Even if you never see them again - do you want to be a man who leaves a bad taste in her mouth, or someone who gives them a good memory of you? Do you want to be the man who shoved her down and fucked her without foreplay, or do you want her to remember you for pleasant masturbation material? Which man do you want to be? (And don't think she doesn't talk to her friends about this, because she will.)
COMMUNICATE. Don't just think "Well she came back to my house, and everyone knows that means she wants sex." Relying on non-verbal cues and expectations leads to insanity.