Sigma could just...tell.. that it was that time of the month. The two of you knew each other so well that it was a blatant change in your mood, and he just assumed.

He was right, so here you both were, cuddling on a couch in his office, a heating pad over your pained stomach and a cup of water of the table beside you.

"You doing better now?" He asked politely, nervous about the entire situation. He had done this a million times, but it was still nerve wracking.