“Marijuana use is independently associated with increased sexual frequency and does not appear to impair sexual function. A positive association between marijuana use and sexual frequency is seen in men and women across all demographic groups.” http://www.jsm.jsexmed.org/article/S1743-6095(17)31417-0/fulltext
“Marijuana Doesn’t Impair Sexual Desire, Study Suggests” https://www.livescience.com/60790-marijuana-use-desire.html
“Marijuana linked to BETTER sexual performance and higher libido: Stanford study finds cannabis users have 20% more sex than the rest of us” http://www.dailymail.co.uk/health/article-5022161/Cannabis-IMPROVES-sexual-performance-boosts-libido.html
“Marijuana use linked to better sexual performance, says study” http://www.asianage.com/life/more-features/271017/marijuana-use-linked-to-better-sexual-performance-says-study.html