lovely targets indeed

That's understandable too. It's one of the reasons for photographing girls in provocative poses. Ideally, the photographer should also be naked, so it's clear that the model is arousing him. You asked the right question: "Where to put the sperm?" My suggestion would be to put the first load on her breasts, then you can take care of my cock to get it ready again while I check if your pussy is wet enough, which I assume it is, and then I'll show you that I can not only jerk you off, but also fuck you fantastically and bring you to multiple orgasms.