An earthworm mating with a worm that has had sex before gives around three times more sperm than it. Individual parts / subassemblies were fabricated and fitted on a supporting stand. Now things are progressing to a max of 3 recipients. Von der neuen Kollegin einen runterholen lassen - Cook jerking. Males of various species tailor their sperm count according to real or perceived competition.
0% / 648 / 10:10
0% / 1 393 / 10:14
0% / 1 160 / 8:15
0% / 813 / 8:10
0% / 2 200 / 8:00
0% / 1 151 / 10:11
0% / 373 / 12:36
0% / 586 / 10:03
0% / 680 / 10:00