I have a girlfriend who I'm dating with the intention of getting married, but I'm also in a sex-friend relationship with my boss in her 30s at work. My boss's pussy is convenient and useful because it accepts all of my sexual desires that my younger girlfriend can't, lets me indulge in it, and even lets me cum inside her. Our relationship is quite comfortable, without thinking about the future, and just letting each other's sexual desires come out. This is the story of my sex-friend, a female boss who I had no romantic feelings for, asking me for a cuckoo sperm and irresponsibly cumming inside her.