Suika simply ignored her other two companions, focusing all of her attention on Rei.  "Don't worry, I'll be gentle with you..." she said, trying to comfort the bunnygirl as she shifted a little lower on the bed, so her head was right next to the girl's breasts.  She started slowly, licking at the nipple, drawing slow circles around it, then began to gently suck at it while her hand continued to tease Rei's other breast.  Suika's other hand began to unfasten Rei's skirt, pulling it open to reveal her panties underneath, though she didn't start trying to pull those off quite yet, instead teasing the girl's sex through them.