G-Spot Simulation Techniques
Move your fingers in even circles all around the vagina, with your fingers as far "in" as is comfortable for her. It generally feels best if you keep consistent, firm pressure along the entire length of the fingers against the vaginal walls and if you keep the pressure fairly constant while rotating in a clockwise rhythm. Stop rotating and rest your fingertips on the (often slightly ridged) area of the vagina just behind the pubic bone and exert pressure upwards, towards her belly. This is direct G-spot stimulation, and it usually feels best if the fingers are subtly moving somehow. You can move them in small, slow circles, or point the fingers more sharply upwards and rock them forwards and back.
It might also feel good to her for you to use your thumb to rub her clitoris while the first two fingers of your hand rest, move in circles, rub her G-spot, or thrust in and out. Tease and hold her with your other free hand.
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Then do one of the following...
-Firmly grab her hair while kissing her.
-Hold her hands above her head
-Pinch her nipples.
-Penetrate or massage the outside of her anus.
-Lie down or crouch so that your head is next to hers and whisper hot things in her ear.
-Passionate kiss, lick, or suck your partner's nipples while she is being penetrated.
-Lick, kiss, or suck on her clitoris.
or try vaginal fisting...
Some women enjoy vaginal fisting (having all or most of their lover's hand in their vagina). This is definitely the case where you should proceed only with your partner's active and ongoing encouragement and within her comfort level. The basic technique for vaginal fisting is as follows: with your hand palm up (and your lover on her back or on all fours) bring your fingers and thumb together to form something that looks like a duck bill. With massaging, and possibly gentle twisting motions, slowly tease your hand into her vagina. If your anatomies allows it, once you get past the third knuckles your fingers will start to gently and naturally curve back to form a fist. The whole procedure takes time and plenty of trust, but the women and men who can take a whole hand vaginally or anally often claim that it leads them to transcendent, ecstatic altered states.