For me, as a single guy, I have to resort mainly to masturbation to obtain sexual relief...
...but...2 years ago, a very close female friend told me she was very frustrated as she'd broken up with her long-time boyfriend and was missing sex very much..she asked me if I wouldn't mind helping her get sexual pleasure occasionally! Mind, omg I certainly didn't mind...she's very attractive and extremely sensual! The main rule she wanted us to keep was that we would only have sex if both of us wanted to.
At the beginning we were a little shy so the first two times we just explored each others' bodies and massaged each other.
On the 3rd occasion we masturbated in front of each other: I found that so very, very exciting - and she did too! We did that the next session too.
After that, she felt comfortable to masturbate me, and she let me masturbate her: of course, I would always cum, but it took a few more sessions for me to learn the best ways to bring her to orgasm...now,we each know how to pleasure each other intensely.
Then we started having penetrative sex: the feeling of pleasure when I ejaculate whilst I'm inside her is very, very intense, made more so by the fact that we are 2 great friends [not 'boy-friend/girl-friend', just real friends who've known each other around 4 years] who are enjoying each other sexually!
She achieves an orgasm just about every time now, sometimes more than once each time eg sometimes she climaxes thru clitoral foreplay, and then orgasms again when we have penetrative sex.
The technique we've developed together for the penetrative stage of our sex sessions is really nice and gives us both extremely intense sexual pleasure:
It involves the whole length of my cock being inserted into her vagina and pulled back through long thrusts then inserted again...and again...and again...
So, when I first penetrate her, I insert the full length of my penis into her vagina, pull back to just the tip, then hold for a moment, then I repeat the insertion of the whole length of my penis and pull-back to the tip, hold for another moment.
I repeat that again several more times; each time my penis is not fully pulled out of her vagina, I always hold the tip of the penis in the vagina for a few seconds, then I pull my penis out completely and insert just the tip into the vagina, hold, then thrust whole length into vagina slowly but firmly.
This I repeat another several times ie pull out each time, insert the tip of my penis, hold for 5 or 6 seconds, then continue insertion of the whole length into her vagina.
After that, I then insert all of my penis fully into her vagina and thrust [the whole length] in continual motion, slowly but firmly...she also thrusts her body/pelvic region in unison with me...this we do as many times as we can last!
By now I will have arrived at the point of no-return and she too will be at the point of orgasm...
We both feel waves + waves of really electric sexual pleasure coursing thru our bodies, these waves build up in an almost slow-motion intensity until the crescendo of really, really intense orgasm comes to us both at exactly the same time.
Sometimes she even has multiple orgasms...and for me, when I reach that point, it's an absolutely sensationally intense ejaculation.
And I often achieve a 2nd orgasm [almost immediately after I've cum by masturbating myself after I've withdrawn from her vagina...that 2nd ejaculation is really, really intense too!!!
Unfortunately for me, she's gone overseas for a couple of years, hopes to come back to NZ but not until next year or 2014...hmmm, I can't wait till she gets back!