Talk:nocturnal penile tumescence
Latest comment: 12 years ago by Equinox
Apparently this is only sum-of-parts if you assume that everybody does their sleeping in the night-time. Equinox ◑ 16:02, 10 April 2012 (UTC)
Apparently this is only sum-of-parts if you assume that everybody does their sleeping in the night-time. Equinox ◑ 16:02, 10 April 2012 (UTC)Reply