Urara is a nurse who works at the hospital I'm assigned to. We've met several times to inspect and explain medical equipment, and we've become friendly, chatting away... A while ago, she was called in during a night shift for a machine malfunction, and we were alone at the hospital in the middle of the night. She jokingly said, "Night shifts are a time when you have a lot of free time, so you start thinking about naughty things..." From that moment on, I lost all sense of reason, and we kissed for just a moment, then ended up having sex in an empty bed... Since then, we've been dating and having sex whenever we can before and after night shifts. Urara is married, but she pretends to be at the hospital, telling her husband, "I'm working the night shift today, so it's okay," and she makes time for me every now and then. Today, since it was our first date in a while, she came wearing a revealing outfit, which was just amazing. We went to an izakaya, but I couldn't stop staring at her cleavage and legs, so we didn't have time to talk, and instead went straight to the hotel. The moment we arrived at the room, I started groping her huge breasts, which were about to spill out of her clothes, in the entranceway. Just a touch of her nipples and Urara's panties are already soaked, right down to the crotch. As I was undressing her in the bathroom, she took my dick all the way down her throat. Even though she was about to choke, she looked up with teary eyes and gave me a devoted blowjob that was way too erotic. I held back from cumming and went to the bath with her. In the bathroom, she alternated between licking my dick and nipples, licking my pussy, twitching, as I begged for penetration. Of course, I couldn't resist, grabbing her waist and pounding her raw. With each thrust against her cervix, her big tits shook as she climaxed multiple times. Finally, I came inside her trembling vagina, of course. She smiled mischievously and said, "It's okay, I'm on the night shift until morning," so I had her change into the nurse costume I'd brought with me, and we went straight for round two. We played hospital room and had fun with this slutty big-breasted nurse until the morning came.