Is there a bl where the uke is cool, calm and collected while the seme's just a big eager ...

Koi To Kedama To Otonari-san (Yaoi)

Cupid ni rakurai, Oh my assistant, love tractor

The first story I remember is "My Purrfect Boss" it suits with your description :)

And then
https://www.mangago.me/read-manga/our_future_cheok_kong/

https://www.mangago.me/read-manga/ote_o_haishaku/

https://www.mangago.me/read-manga/ring/

https://www.mangago.me/read-manga/can_i_touch_your_inside_deep/

https://www.mangago.me/read-manga/eigyou_nika/

Thank you for the rec!! I loved the cat's expression at the end of the first chapter ヾ(❀╹◡╹)ﾉ~

Loved it!!

Akai Ringo no Nakami Jijou

!!! Σ(っ° ᴗ °)っ THEY'RE SO CUTE TOGETHER DKSHEUNEHD THANKS FOR THIS!

Just finished reading 'Oh My Assistant' and WHEEZE, I loved it!!! They're adorable! But.. skjskdjsba how could he just ignore the fact his friend faked a suicide just to get him away from him lover (╯°Д °)╯╧╧

His lover* how could the uke*