Type: Smut
Top: Reaper (obviously)
Bottom: Nightmare
Some wholesome aftercare as well. Colour coded safe words.
Scenario: Peace was made in the multiverse so the Star Sans' and Bad Sans' disbanded. Everyone moved on with their lives by now.
Also note: Nightmare is immune to Reapers touch that kills people.
Third Person POV
Nightmare was fidgeting with his jacket sleeves, nervously thinking of how he could bring up wanting to try being bottom for once.
"Hey love." Reaper said, wrapping his arms around Nightmares shoulders from behind.
"Hey.." Nightmare responded quietly.
"What's wrong love? You seem nervous?" Reaper asked softly. He moved to be in front of Nightmare.
"I- I want to try s- something.. but I- I'm too scared to ask..." Nightmare stuttered out, not making eye contact.
"Love, you don't have to be scared to ask to try something new." Reaper said, cupping Nightmares cheek. He held a small and gentle smile, keeping his tone light.
Nightmare took a deep breath before he nervously looked at Reaper. "C- can I.. try.. being th- the bottom?" He nervously stuttered.
"Of course you can, I don't mind." Reaper said, giving Nightmare a reassuring smile. He kept his hand on Nightmares cheek, seeing as how Nightmare liked the affection.
Nightmare gave a nervous smile and relaxed slightly. He was very unsure of this, but he trusted Reaper to not hurt him.
"If you change your mind, let me know and I'll stop. Okay?" Reaper said, making sure Nightmare knew he could ask to stop if needed.
"O- okay.. thank you." Nightmare smiled. He was happy that he could stop if needed.
"Before we start, are you actually comfortable with this?" Reaper asked, making sure Nightmare was actually okay.
"Yeah.. I'm just a little nervous." Nightmare said, letting Reaper know he was okay to continue.
Reaper nodded, and teleported them to their room. Nightmare gave a shy smile, despite them having sex multiple times. It made sense for Nightmare to be nervous about trying something new. Reaper quickly undressed the two, just to get it out of the way before the fun started.
Reaper gave a reassuring smile, trying to calm Nightmare a little. Nightmare gave a tiny smile back. Reaper leaned down and trapped his smaller lover in a kiss which Nightmare gladly returned. Reaper moved one hand down and unsurprisingly, Nightmare had his male ectobody summoned. Reaper never asked why Nightmare only used his male ecto, but he didn't really care. The only thing that mattered was Nightmares comfort.
Reaper ran his hand up Nightmares spine lightly, causing Nightmare to moan and arch his back. Reaper took the moan as a chance to slip his tongue into Nightmares mouth, which Nightmare wasn't expecting. With the added distraction, Reaper pressed a finger into Nightmares ass and paused when Nightmare whined slightly. They broke the kiss as Nightmare took shaking breaths.
"Hey, calm down love. You need to relax your body to lower the pain." Reaper said, using his free hand to rub small circles on Nightmares back.
Nightmare nodded and tried to focus on the calming affection Reaper was giving him. When Reaper heard Nightmares breathing even out, he moved his finger to start stretching the smaller. Nightmare gave a small moan at the feeling. Reaper added a second finger, and started to make a scissoring motion.
