Should we be together? (Gaster x Alice OC)

(A/N) Warning! Lemon ahead! You have being warn!

Alice P.O.V

I was in my room in my nightgown and walking in circle. I was in panic of how I end up waiting for the for midnight to meet with Gaster at the garden. I keep looking at the clock. 11:50 PM... 10 minutes and I will meet with Gaster... I thought. I keep blushing and I decide to splash my face with water to calm myself down. Once I start to calm down, I put a shawl around me and I open the window and extended my wings to go down. I sit down on the cold bench and look up to the stars. I was mesmerize by the stars that I didn't feel arms around me. I squeals in surprise until I saw that was skeletal arms. His arms. He pull me toward his chest and his chin on the top of my head.

"Gaster! Please don't scare me like that!" I said blushing and my wings puffing. He simply chuckle and hug me tightly.

"Ready for a unforgiven night?~" he said behind my ear before he kiss my shoulder. I shiver but nod tho. He hold me bridal style and blush redder.

"Close your eyes sweetcheeks~" He said. And I did what he said. I could feel his magic surrounding me and I open my eyes carefully. I look around and we were in a bedroom. He put me down on the bed and crawl on top me. I blush madly red but I still keep looking at Gaster. He rub my cheek as I lean on his touch. He smirk at me for my action.

"You are so cute sweetcheeks~" he said as he kiss me. I melt to his kiss and warp my arms around his neck. He start kissing down to my chin and my neck. He keep kissing my neck until he found my sweetspot. I gasp as he found it and I could feel his lips forming a smirk as he start abuse the spot with kiss, tongue and bites. I moan as his hands explore my body. One of his hand grab one of my breast and start groping it. I moan some more when his other hand lift my nightgown and start caressing my thight. I could feel the heat between my legs and the wet feel on my panties. I lift my back and roll my hip.

"Eager already?" He said chuckle on my neck. My whole body shiver and my hands start to go to his chest. I lower my hands to make it take of his turtleneck sweater. He took it off and rub his ribs cage. He start to groan and moan as I put more pressure to them. He then take off my nightgown. He grin at the top of me looking at my bare chest. I look away embarassing of the way he look at me. I try to hide chest but he summon some purple hands that look like his with the same hole on the middle of it and take off my hands of my chest and putting at the top if my head.

"Aha! You cannot hide it from me! I want to see every part of your body.~" he said as he grab my breasts with both his hands and start licking one of them. I moan in surprise as he suck, lick and bite my nipples. My buttom start to get more wet as he keep playing with my breasts. I use my legs to rub his hips and his crotch. He moan my name before he take off my panties.

"Already wet for me?" He said with a dark chuckle. I blush and look away. I could feel he summon another pair of hands to grab my breasts as he spray my legs to start licking my clit. I moan again calling his name. He suck and lick until he put his tongue inside of me. His tongue went in and out until I could feel the buttom of my stomach start to building up.

"G-G-Gaster! I am-!" I couldn't said no more and end up moan.

"I know sweetcheeks~ let it all out~" he said as he go faster with his tongue. I was a moan mess and his magical hands keeping me for moving my hips and playing with my breasts. I feel myself cumming and Gaster drink all of my juice. I was blushing redder and what out of breath. Gaster end up of top of me grin and a look full lust. His tongue lick his lips full of hunger. I shiver of the view.

"Now~ let see if you can handle this size.~" he cooed. He pull down his pants and underwear. The view make my eyes widen. How it's will fit?! I thought but my mouth start to drools.

"Like what you see?" He said. I nod and look at him full at lust. That took him by surprise.

"Take me..." I just said as I warp my legs around his hips and pull him closer to me. He smirk and slowly put his cock inside of me. I gasp and start rolling my hips. He stop when he feel I was in pain. He wait for me to ajust his size and I did a thrust test. I signal Gaster he can continue and he start thrusting all the way inside and all the way out. I moan and roll my hips as he trust more faster.

"D-damn y-you are tight..." He said between thrusting. He going faster and faster. We both moan each other name before we both eventually come. We were out of breath. His magical hands disapear but I wanted some more and I put myself on top of him. His eyes widen and hold my hips.

"A-alice! What are you d-doing?" He said.

"Hmm just want to have a taste some more.~" i cooed as I kiss him, rubbing his ribcage and start rolling my hips on his hips. He moan as he ark his back and feel his cock growing inside of me. I start moving faster. He moan my name and it was the most beautiful sound he could make. My wings was twiching as his cock go deeper inside of me. Then I could feel coming again and i could feel Gaster was about to come too. I went as fast as I can and I cum all over his cock and he follow soon after. I put my wings back and lay down next to Gaster. He pull a blanket to cover us and we cuddle each other.

"Didn't thought you were a naughty angel~" he said nuzzling my hair. I giggles and nuzzle his chest.

"And I didn't thought you are a naughty skeleton~" I said back. He chuckle to before he kiss me. We both fall asleep on each other arms.