Haha, pretty much par for the course for this author...tho she does have more extended scenes in her other manga, they're never as explicit as many other mangaka's
I don't know if it's the same Mangaka but the artwork is similar,, try Complex if you haven't before. It's one of my favorites because it goes all the way from childhood friends to new young lovers, relationship goes through and past college, there is a minor separation that breaks your heart, the reunion and together for life. It's got a weird pedo dude who shows up twice but besides that, it's mostly about the main characters unending love and devotion to each other. It's a great Manga!
I HIGHLY RECOMMEND!
Sex scenes was absolutely a disappointment for me... I mean, i waited for it till the last chapter with huge hopes and then it didnt even last ONE F***KING PAGE... But story was cute af tho ...