Does that happen often ..is this a normal practice ? who knows ..in my experience ..i have heard on the old grapevine ..that there are many people who indulge in this practise ! ..blow me down ..is it a hetro thing or maybe a tansexual thing ..who knows answers welcome ..!

Suggestions will be appreciated..

Yes, quite common.
Yes, these oral-sex performing perverts are often called "sexually active people"
I'm pretty sure straight, gay, bi, transexual, and intersex (formerly 'hermaphrodites') men all enjoy oral sex.

Thanks for suggestions

Hell yeah! I'd sleep with it in my mouth if it wasn't so hot and suffocating under the duvet.