Checking reflexes, measuring your heart rate, probing front hole, then getting butt hole temperature with a huge ass "thermometer"~ And you gotta push it deep into the ass for more accurate reading. But~ it doesn't have to be difficult when you have an assistant offer a helping hand. All to ensure that sample extraction and self-insemination is in an ideal butt temperature. Mmm~ that's how you successfully put your own sperm inside yourself~