So you need a physical examination before tomorrow or you'll be kicked out of school? Well, Mommy can examine you. Just remember to be a good patient or I won't be able fax the school the papers they need. First I ask you some questions...sorry if they're embarrassing but I have to ask them all. Oh no, the only thermometer I have on me is a rectal one...guess that will teach you not to do things last minute! Oh you're just so embarrassed. I'll strip naked to prove to you that its not a big deal to be naked in front of your mommy. Now, theres just one thing left. You need a prostrate exam. I stick my fingers in and start to fuck you. I can tell you like it as your cock gets hard and I decide to make you cum so I can have a sperm sample. Your cum leaks all over and ruins the sample, so I try to get you hard again with my ass but you are still limp. I decide that my strap will make you hard again, and get ready to fuck your ass. This works like a charm and before long you're ready to cum all over again with my big cock in your ass. Again, you spill it all over the place and I can't get a good enough sample. Well, I need to go make dinner! You stay there with your ass up and ready for me and I'll come back for the sample later...