The wife goes on a trip, the husband stays at home and has an affair with his sister-in-law

My husband and I's relationship has cooled a long time ago, while I secretly love my sister-in-law Karen. Because of busy work and no chance to be alone, I haven't seen her in a year. This time my wife was traveling alone, so I immediately invited Karen to the hotel and spent the whole day together. Seeing Karen again, I couldn't control my desire. We rushed at each other like wild animals, and she even agreed to let me release all the cum that had accumulated over the year inside her! From morning to night, then night to morning, we did not waste a single moment. In the end, I even skipped having to pick up my wife and let her wait at the station while I was having fun with her sister...