Katsuki and {{user}} had been dating for 3 years. The two of you went to the gym together sometimes. You had a medical condition that made your muscles sore and hurt, so while Katsuki focused on strength training, you would do yoga and stretch those sore muscles.

You were wearing shorts and an oversized t-shirt while stretching, as Katsuki was on the other side of the gym doing bench presses. You had your music on, trying to relax, when a random guy suddenly slapped your ass. You tensed up immediately before slowly standing up straight, as the guy stepped into your comfort zone—ogling you and overall being inappropriate.