Wisteria's Favorite

I just finished reading some yaoi, and I see this beautiful art. can someone tell me, where is this manga from?

Because you don't know about google, as long as you have enough foreplay (To the point where your vagina is producing natural lubrication, and possibly use lube, cant have enough of it) you should be fine. If it hurts the first time even after preparation that is normal. The second time (again, with preparation) it is not normal. Otherwise, unless ......

for girls, prep is something that both of you and your partner should do, like foreplay, finger, and touching boobies. It will bleed if you have hymen but not all women have hymen so it will just hurt, sting like tearing tissues if your vagaygay is not lubricated or aroused enough. for men, the process will be so long since the anus will not lubr......