What is Sperm Partner?
1.
The person that help you, (or you helped) conscieve a child or multiple children together.
See
Sheryl was no more than just a sperm partner to David, who had 7 different sexual partners who happened to father his children.
Sheryl was one of David's sperm partners becuse she accepted his semen into her vagina for 9 months until the baby plopped out.
