Apollo Flores is still grieving the loss of his partner when a change in schedule has him looking for child-care assistance for his twin daughters. He has some reservations when his friend Dustin recommends his brother Dylan for the job. Apollo remembers a younger Dylan who crushed on him hard, but he isn't quite prepared for the all-grown-up Dylan. 
 Dylan has changed quite a bit from when Apollo last saw him. He's perfect for Apollo in many ways, one of those being his qualifications to provide child-care to his children. Even though Apollo is attracted to Dylan from the start, Apollo isn't ready to move forward with another relationship so they end up agreeing to a physical relationship with an expiration date. Only problem is that no one told Apollo's heart about their silly arrangement. The intimate moments between Apollo and Dylan are super steamy and they connect in a way that sometimes scares Apollo. 
 There is so much I like about At Attention and this series. Annabeth Albert does a superb job of allowing the men in this series to be vulnerable without being wimpy. Apollo's grief is palpable. At first, he fumbles with understanding how he moves on from his grief, believing he will never again experience what he had with his spouse. When Dylan comes along, he struggles with his attraction to Dylan. How he begins to embrace a new future he hadn't envisioned is really the story here and it is handled with much sensitivity and love. I found this to be a beautiful part of the story and I appreciated getting a character I don't see very often in romance, especially M/M romance. 
 Dylan is terrific too. He's patient and kind and Apollo's daughters love him. Really, everyone loves him, he's the sort of guy that just makes people comfortable. And while Dylan really cares about Apollo -- this is clear right from the start, but he isn't a pushover either. When Apollo acts like a jerk and pushes Dylan away, he's strong enough to understand that he needs space and gives it to him, even though his heart is breaking. 
 I devoured At Attention. It's an easy read with characters that immediately sucked me into their world. Apollo's daughters are adorable. While Apollo and Dylan's story is at time heart-wrenching and uplifting, it left me feeling good. I really do like everything about this series. At Attention works as a standalone, too. 
 Recommended for fans of M/M romance. You won't be sorry. 
 An ARC was provided for review.