Just imagine Sans and Asriel are in the Same age, while Sans is shorter, much like a Sub.
It was a normal day on the.... Surface. All monsters and human got together. Prince Dreemurr, Asriel and Sans are playing together.
Asriel: So Sans... have you met any... umm... Loves for you?
Sans: Nawh, but why'd ya ask?
Asriel: Oh! Umm.. nothing!
Sans:...
Sans: Asri, I know you have something to tell me. *puts both hands on Asriel's shoulder* and I want to know.
Asriel: I.. um... I... *sigh* I....
Sans: You what?
Asriel: I.... I... Lo-lo...
Sans: hmm?
Asriel: I-i lo....
Asriel: I LOVE YOU SANS!!!!
Sans: *shocked*!!!
Sans: You... You do?...
Asriel: I-I Mean I-!!!
Sans: *kisses Asriel*
Asriel: *shocked but kissed back*
Sans: *Wraps arm around Asriel's neck*
Asriel: *puts arms around Sans's waist*
Sans: *pulls away* I love you, Asri...
Asriel: I love you too, Sansy...
Sans and Asriel: *kissed again*
Papyrus: GUYS, THE GREAT PAPYRUS HAS-!!!
Undyne: Oh my god...
Alphys: Wow... *takes picture*
Tori: My Child's first kiss...
Asriel: Oh Guys!!! Um... let me explain!!! Umm...
Sans: I'll explain... Were a couple!!!
Frisk: *jealous of Asriel*...
Asriel: Yes!!!
Asriel: *picks Sans up, bridal style~*
Sans: *giggles* Hey!!!
Undyne: Well, Congrats you two!!!
Tori: *le proud tears*
Asriel: Uhh... Mom?
Tori: I'll be having grandkids one day...
Sans and Asriel: *blushing madly*
Papyrus: AND I WILL BE THE GREATEST UNCLE EVER!!!
Sans: Heh, alright you guys calm down...
Frisk: I'll be at the bathroom...
Toriel: Alright!!! Be safe, my child.
*at the girls bathroom* (yep, she's a girl!)
Frisk: Sans should be mine!!!
Chara: whoa, calm down Frisk...
Frisk: He's mine... he's mine... HE'S MINE!!!!
Chara: ('-')
*back at home...*
Undyne: How long have you liked him?
Asriel: Umm... Since the day I claimed the SOUL.
Tori: It is time to go home... Let's go Asriel, Frisk.
Frisk: yes!!! No more of them being near!!!
Asriel:......
Asriel: I wanna sleep with Sans.
Tori: Oh! Of course!!!
Frisk: Uuggghh!!!
Asriel: Thanks mom!!! Bye!
Tori: Goodbye and goodnight my child!!!
Asriel: So... I'll sleep on the couch...
Sans: What?! No, you'll sleep with me on my bed!
Asriel: *blushes* Oh! Um... okay!
Sans and Asriel: *goes in Sans's room*
Sans: Yay!
Asriel: *locks the door and jumps on Sans*
Sans: *blushing crazily* Uh... Asri?... What are you doing...?
Asriel: Were a couple, so we do what couples do... *licks Sans's neck*
Sans: Aahh~...
Asriel: *opens his pants*
Sans: *opens his pants as well*
Asriel: *thrusting in Sans*
Sans: HNGH!!! AH!!! FASTER!!! FASTER!!!
Asriel: *panting* Sans... you're so tight...
Sans: I'M GONNA CUM!!!
Sans: *cummed*
Asriel: hmm... *bends down and licked the cum* mmm~
Sans: Aaahhh~♡!
Asriel: *rubbing Sans's dick*
Sans: HNGH!!! Aaahhh!!! *pant* *pant* *pant*....
Asriel: *puts Sans's ecto into his mouth* mmm~♡!
Sans: AAAAAAAAAHHHH!!!!!!~♡♡
Asriel: *Stopped*
Sans: Aww...
Asriel: It's late...
*from the other side of the door*
Undyne: Aww... they stopped...
Alphys: Sans's moans were super loud!
Undyne: And he just admitted that he would cum... Yuck...
Papyrus: It's natural... yet, I have never done it...
Undyne: Welp, let's go sleep....
*back inside*
Asriel and Sans: *sound asleep*
Tadaaaa~ Sorry for the lemon... plz forgive me, kids......................
Actually, NOT SORRY!!!!!!
HAH!!!!(^U^)
DU LIEST GERADE
Sans x Asriel. TRUE LOVE
RomantikI know this ship does not exist, but hey. There is Flowey x Sans, and Flowey IS Asriel. So... it's the same... Dominant: Asriel Submissive: Sans Not sorry at all (-w-)/