Can I Do it with the Delivery Onii-san?

Rising star Shinobu Sakuma harbors a unique secret: an undeniable fondness for well-built (male) chests. Enter Yuuto Okuda, a delivery guy with a physique that could launch a thousand ships (for at least one smitten actor). Shinobu, completely floored by Yuuto's impressive pecs, throws himself at every opportunity to get closer. But will his quest for chest-proximity lead to love or land him in hot water?

(Source: Gentosha, translated)

Note: Includes one extra chapter.