Ruriiro Butterfly
Didn't really like the last 2 - the characters were too young, and the stories developed too fast, (even for oneshots). The others were really sweet, though.
Zankokuna Kimi to Tomoni
Stupid plots, but hot sex scenes.
The Wrecker
Scarlet
Like most people here, I didn't like the first story, but liked the third and loved the second. The second story alone earned the 4 stars. If it were the 3rd alone, I would have given it 3 or 3.5 stars, and the 1st story alone would have had 2.5 or 3 stars. The average would be about 3.5 stars, but I want to give it 4 because I really liked that 2nd story - It was sweet and hot. Btw, if I want to reread just the 2nd story, it's pp102-174 (incl.).
Love Romance Sweet Kiss
'1pm, Rainy Weather in the Afternoon', (chapter 4), is soooo sweet - I love it! The rest is kinda meh. I would reread just that ch.4.
Yuuhi ni Fureru Sono Mae ni
The sex is mentioned/implied, but not shown. Sounds quite poetic and slow-paced.
Exclusive Love Contract
Apparently, this and all of Minami Haruka's manga are full of hot sex, (with little plot).
Kodou no Yokan - Vital Zero