I also found this quote interesting because we have read about several cultures who viewed mental lusting as also "losing" virginity, therefore this statement wouldn't be true in all cultures.
Cissexism aside, this is true. People with vaginas should not expect pain when being penetrated by a penis .
Losing Your Virginity - Things No One Tells You About Having Sex
Find Out When Most Teens Are Losing Their Virginity
concept of virginity a little mind fucking going on
Losing It by Emma Rathbone: http://www.stylemepretty.com/2016/06/21/the-best-new-summer-books-to-stash-in-your-beach-bag/
Virgin Media Mail Inbox
The Truth About Losing Your Virginity
Funny! Instead 'losing your virginity,' Laci Green says you should think of it as your 'sexual debut!' Right on! LET'S LOSE "VIRGINITY" - Laci Green's Sex+ series
Losing Virginity for Good