During a company retreat at a hot spring inn, I couldn't help getting aroused seeing a female coworker stripping off her yukata and soaking in the mud. Her flushed body drove me to invite her into my room, where she responded with unexpected passion. I was stunned to see my normally serious colleague enthusiastically giving me a blowjob. To my surprise, she even allowed bareback sex. This was truly the best moment of being part of this company.