No problem.
And as always, the author's comment on this is fantastic:
"It's totally canon that Catherine does lots of Kegel exercises so strapless is no problem."
^ I made that point in last week's HakunoxTamamo pic, but somebody took offense to it which is hilarious because this pic immediately proves my point. Heh
^ I like it but ain't gonna defend its flaws or anything because its far from perfect. It's basically every yuri story ever told but drawn in amazing art. People who don't like it are sure to tell you they don't like it though. It's like the yuri version of Fortnite