Is this a concerning conversation or normal conversation for 17 year olds

I don't think my son knew I was home but I heard him and his best friend talking about sex and the conversation made me feel like I need to have a talk with him. We had the sex talk once but I didn't really like the conversation and how women were being portrayed in the conversation. The conversation kind of went like this

Friend: I just fucked Jessica. She's number twenty.

Son: Congrats

Friend: What's your count

Son: Zero

Friend: Liar

Son: Truther

Friend: You've never had sex? You're almost 18! Are you saving yourself or something.

Son: No

Friend: Are you gay?

Son: I mean if you asked to make out I wouldn't be mad at it but I feel the same way about my mom's coworker soooooo take that how you want it.

Friend: Gross. I would never kiss you.

Son: Your loss.

Friend :But why? You play the guitar. Do you know how many bitches panties would be dropping for you?

Son: Yeah. And I prefer to play my guitar and smoke weed. I don't really care about having sex.

Friend: Every man wants to fuck

Son: I don't care if I fuck or not.

Friend: Well we are getting you laid for your 18th birthday. Even if we have to put some hoes in K-hole

Son: That's called rape.

Friend: Shut up

Son: All I'm doing for my 18yh birthday is having a pot brownie and watching season 2 of Human Resources.

Friend: You are gonna die alone

Son: I have accepted that.

The conversation just felt gross and since raping women was in the conversation I feel like that's a talk.