To put it this way,

I got on top of Ichirin and mounted her...

It was my first time, so I had a bit of trouble because Ichirin was so tight. I tried my hardest and she said "please be more rough with me".

W-w-what do you mean by that!?

C-calm down!!

She probably meant a massage or doing stretches or something!!

That's because...

Murasa was doing it so gently...

It would have felt better if she was more forceful.