The Infidelity Test Kit from Check Mate. Er… $49.95 a pair [Ed – his n’hers perhaps?]
The patented CheckMate Infidelity Test is a a unique proprietary semen detection test unlike anything else. The easy to use Infidelity Test Kit is designed to test 5-10 articles of clothing for the presence of semen and works on any type or color of material. CheckMate also provides instant results in 15 seconds without damaging or staining the article being tested.