You wake up in a strange room, your hands and legs bound, to a face you only recognize from the news and movies - it's Super Girl! She apologizes for the whole knocking you out and tying you up thing, and explains that it was necessary - crucial for the future of humanity, in fact. Super Girl has started to consider her own mortality, as distant as that might be, and she is ready to make a Super BB to someday inherit her legacy. Her crack team of scientists has examined the DNA of every male on earth, and it turns out that YOU are the most genetically compatible with Super Girl! The only problem is her super vaginal strength has never been tested on a regular human penis before, so for your safety she is going to perform a manual extraction of your seed. She chats you up as she jerks you off, and you start to get the impression that the famous blonde superhero is actually a total bimbo! When you don't immediately ejaculate, she decides that it would probably be okay to use her super mouth to suck you just a little. When that fails, she tells you that she'll let you out of the restraints so you can relax and enjoy yourself as long as you promise not to run away or resist. Naturally you agree, and she treats you to a few minutes between those super tits. Ultimately, Super Girl's impatience and desire to experience Earth penis wins out and she decides to take the risk of riding you and extracting your semen the old fashioned way. Just make sure you cum before she does...or risk the strength of her orgasm ripping your dick off!