Chris starts panting. His head back in pure sexual pleasure. Tyler noticed that Chris's thrusts were becoming more powerful and harder. Then it happens. Chris's muscles start to expand. As that happens, his thrusts become faster and harder, making Tyler lose control over himself.
Tyler and Chris both roared in pleasure. Tyler let out a gasp as he realised that Chris's muscles are growing! Veins snake around his biceps like a map. With every thrust they pumped bigger and bigger and bigger. Tyler's lust consumed him as he watched Chris's muscles expand.
Tyler cried out "Ooh, more! Uh! More, faster! UH! More, MORE!"
Chris was to far gone to notice anything was happening to him, Tyler's shouts spurred him on. And soon as Chris came, he screamed "YESSSSSSSS!!!!!"
Though still not noticing why he was feeling so powerful anyway, Chris's mouth hung open when he finally noticed what had happened. Chris...