Taken from DLSite: https://www.dlsite.com/maniax/work/=/product_id/RJ01268266.html

Credit for translation belongs to meatmanTL

Can't force someone out of their comfort zone wothout convincing them first

Base +6, xw1as +9, Eyriol +7, Sylphvine +6, newtype711 +7, Luuuk +6, Jago Smith +8, Akillyz +6, urlgrey18 +6, Anonyslime +8, zarazza +6, S-One +6, Donut_Flower +6

Buying dick growth drugs that force the user to have sex to get rid of it, is a quick way to end up getting dicked down by the recipient, but I guess Imouto didn't factor in that step when she bought them for her sister.

Base +6, 44inf +6, Azura Meta +6, Sylphvine +6, newtype711 +7, Luuuk +6, Psi Stuff +5, urlgrey18 +6, asdfmanboy +6, jsnormandy +12, Anonyslime +8, zarazza +6, Ashvinoth +7, and 2 more...

Heh, that was hilarious........and sis got what she had coming to her :D

Awesome, thanks for all the effort and sharing :)

Base +57, as102 +13, LetsSeeWhereThisGoes +6, kamisking +6, Sylphvine +6, newtype711 +7, Luuuk +6, Psi Stuff +5, alphabetagama +8, Dooderz -8, shadehalo +6, zarazza +6, Ashvinoth +7, and 1 more...

little sister: gives big sister dick growing drug to get her to go outside
little sister: gets raped by big sister
little sister: surprise Pikachu face

Base +7, 44inf +6, Azura Meta +6, ghoulishtie +7, TUSF +6, as102 +13, kamisking +6, W1ncest +6, Sylphvine +6, hades_root +6, Luuuk +6, plusarkos +6, SSBDeft +6, and 15 more...

“The risk I took was calculated, but man am I bad at math…” -the little sister, probably.

Base +7, Miko Neko +7, Sylphvine +6, newtype711 +7, Lpandfm +9, Luuuk +6, Sentor +6, plusarkos +6, Huggable Hero +6, shinokuno +2, PaperCrease +6, ToniHD +15, Anonyslime +8, and 3 more...

How all big sisters should treat their little sisters

Base +6, davremedy +12, Luuuk +6, SSBDeft +6, Dydelhaert +8, PaperCrease +6, asdfmanboy +6, mahbucket +6

futanari is the best！

Base +6, Garadice +7, SSBDeft +6, drago78535 +6, asdfmanboy +6, zarazza +6, Donut_Flower +6

I want to rate this 5.5 stars but 5.0 is the limit, dammit!

Base +7, SSBDeft +6, grg0r +3, Riddik11 +7, U8312n008 +6, Donut_Flower +6

Stupid plans will succeed stupidly. Good job little sis!

Base +6, Luuuk +6

Look, I get it Little Sis, but you're not gonna help a shut-in by forcing it. Gotta find out what made them a shut-in in the first place and work on that.

Base +7, U8312n008 +6, asdfmanboy +6

Last time a little sister wanna push her sibling outdoor, trans her brother into a loli.

Base +6, Luuuk -6

excellent work hope for more maybe sequel with pregnancy!

Base +8, Donut_Flower +6

full-packaged means with balls, that's the whole reason there are two tags

Base +6, Critnuke +6, narmaya +6

What retard tagged "full-packaged futanari" when she clearly only has a dick and no balls?

Base +6, narmaya +6