Improving the quality of orgasm

Hi guys! I do not speak English and write through a translator. Please forgive me. In the subject a little more months, but the results are there. In the third session I felt involuntary contractions. With each session, feelings intensified. And a week ago there was a very powerful session: I experienced 4 super orgasms with aneros and about 20 without it!!! But here's the question: during orgasms I experience a very strong tension of the whole body and this moment Aneros falls out. It doesn't bother me, then have orgasm after orgasm without the aneros. I'm worried about this intense tension. Is it possible to transform it through relaxation into greater satisfaction?