Unimaginable you would say. Sex is such a serious thing that when you go for it you can think of nothing else. All you can think of how it is going to make the sexual encounter interesting for you and your date... a rocking orgasm or cascading climax.
I don't agree with such novices...
Laughing together helps open up the relationship and make it more intimate. Try this. During foreplay hold your sex partner in a tight embrace and whisper gently into her ears about something funny that had happened earlier. Peals of laughter that will follow will add to your encounter not lesson it.
Try some complicated positions that they show in online sex dating sites and in the process realise that you have to be made of rubber to do the acts. It will do no harm that in the process you begin to enjoy a new position and laugh when you remember the first time.
Let slip an internet joke that you had read in an online dating services site. Or simply laugh at your fading erection even before sex has begun. Pretend to kiss give a sharp bite instead and laugh together at the sharp cry of sweet pain that follows.
Dress like weird if you are straight or discuss how gays lesbians make love and the slang they use amongst themselves. It will surely generate laughter and it you are an alternate sex seeker than there is not much funny about straights.
Women can surprise their date with a huge dildo hidden under in her panties. Men can wear stuffed bra on their hairy chest to show off to their sex partner as a surprise.
Simple things make you laugh when put forth in a right manner. There is no limit to what you can do to make your sexual encounters interesting, just be innovative and bold enough to laugh and proceed towards a thrilling sexual encounter.