Breasts more!

You decide to move your mouth down to rest upon her chest. You suck gently on her definitely still erect nipples, and tease them cruelly with your tongue. Every sensation on her skin shocks through her body, adding to her orgasm that she's trapped in. You're fairly sure she won't know how to handle this level of sexual pleasure. It's best not to tease her /too/ much. Imagine feeling the great moment of an orgasm, but for minutes at a time, or longer.

You look into her eyes and kiss her softly.

"S-So... So good... Oh my god," she says through her rapid breathing.

You bounce her tits up and down in your hands, causing repeated surges of desire to build upon her never-ending climax.