Sexual

For how long should we kiss the partner while having sex intercourse/

Not a lot.
Hickies or bitemarks/bruises on the shoulder
There really isnt a lot of kissing that goes on. Kissing to me is more personal and intimate then just sex.
And I think it should be saved for people who mean more.

That sounds weird, but oh well.
Im weird.

While having sex?
That's completely up to you. Some people kiss a lot while having sex and some don't.

Hmm I dont think kissing should b saved for another time other then s*x actually I think that's the perfect time to do it ! But I do agree with the whole hickoes/bite marks I don't know bout bruises because I dont play that rough lmao but watever floats your boat..