『変身ヒロイン快楽堕ち ～ラビットバニー最後の改造～』by ゴンざぶろー
『魔法少女クリトリア ～く、クリトリスが弱くなんてないんだからねっ!～』by 差詰そうたろう
『魔物の食餌』by もつとら
『陰核奴隷メイシア ～陰核調教に堕ちる戦姫～』by 猫サム雷
表紙：ボリス

http://www.dlsite.com/books/work/=/product_id/BJ259589.html

I've seen dick nipples. I've seen pussy nipples. Hell I've even seen lipples(mouths (complete with tongue) for nipples). But dick pussy nipples, these are new to me.

Base +6, iamlmy_ +6

@SilenceComes:
I dug deep with this, just to make sure, and oh man is it funny to me. See, at first I thought Trump did it first. Makita Aoi also did some like that in select images after that in Momo-An as well. C61, pretty far back in Dec 2001. I link the first page because it builds up to it.

http://e-hentai.fbk.tokyo/index/s/f1b70b9c9b/173269-38

But I had to make sure because I wanted to know if I was right or wrong. Nah, AFAIK the first idea of what I'd call futanari nipples was actually... MATCHA, AKA OZONE, AKA Uno Makoto with TANA's guidance as writer. Back in C58...held in August 2000.

http://e-hentai.fbk.tokyo/index/s/f8ba37d642/958463-27

Giving Souta credit, neither did them birthing eggs from them. Gotta love pushing the envelope of weird porn.

Base +17, HeavHo +12