Susan wasn't entirely sure exactly how to do this, or for that matter if it was such a good idea after all. Alan seemed so small, but he was literally writhing from her ministrations and she knew he wanted more, even if he didn't yet know that himself. This appendage she'd acquired between her legs was painfully hard and huge. The amazingly powerful body she now had wanted to take cute little Alan right now, no ifs ands or buts. "Well, maybe a butt" she snorted to herself.
Telling herself she would just "play a little", Susan grasped her new equipment and guided the tip to Alan's wet entrance to use the end instead of her fingers, just to see what it was like. "It is rather nice!" she thought, letting just a little bit penetrate as she reached forward and fondled Alan's dangling and bobbing breasts. The more Alan thrashed, the more aroused Susan became as her new male instincts began to take hold.
Alan was beside himself, with fragmented thoughts as he heard his own feminine voice rhythmically gasping, "Oh Gawd ... Oh Gawd ... Oh Gawd". He was slowly and confusedly coming to realize that something was odd, when "OHHH ... AHHHH GGGAAAWWWDDD!" Alan was spitted! "WHAAA ... IIEEEE... OH .... OH ... OH ......." Was as far as he got before it happened again, and again, and again as he screamed out his shock and pleasure in a confusing welter of noise and internal explosions that destroyed conscious thought.
Susan smiled in delight at the sounds her little husband was making, spurring her to faster and harder thrusts until a focused explosion of delight and success coursed through her. Wow, it didn't just feel GOOD, it felt VICTORIOUS! A fundamental difference between men an women, she thought as she slowly laid Alan down, draped her huge arm across his soft round little butt and closed her eyes.