Astrid is in on the romance.

"You really need to soundproof your room," said Astrid. "I could hear you two going at it on my nightly patrol."

Hiccup and Mirabel exchanged glances, blushing.

"Don't worry," said Astrid. "Everyone thought it was the sheep bleating."

"This is getting out of hand," said Hiccup, pinching in between his eyes.

"I'll say," said Astrid. "You really know how to show a girl a good time don't you?"

Astrid casually slammed her godly ax into a nearby rock one handed, embedding its indestructible blade into it with a feat of strength expected from the Matron Goddess of Shield-Maidens, before casually strolling up to Mirabel,wrapping on of her hands around the goddess, and giving her a kiss on the lips.

Mirabel didn't fight it. In fact, her fingers dug into the blonde braid of hair. Both moaned as their lips smacked in between breaths. Hiccup did nothing but watch, aroused as his girlfriends went at it.

"I hope he showed you a good time," said Astrid, holding up Mirabel's head from under her chin.

"Yeah. It was great. Wish you were there with us," said Mirabel, readjusting her glasses.

"I had work last night. But don't worry." Astrid tucked her head on Mirabel's shoulder, nibbling on Mirabel's earlobe and earning a gasp from her girlfriend. "I'll make it up to you tonight."

Hiccup and Mirabel's relationship was a secret, but not to Astrid.

She had discovered the two of them in an indecent position. Ever the loyal soldier, Astrid felt like she had a duty to let Stoick about it. As absurd as the thought if Hiccup being a playboy was, she knew if the wrong people learned of this, it could cause a scandal, possibly even a war. It also didn't help that, ever since the Red ****, she had been nursing a crush on Hiccup and found the idea of him inside another woman to be rather heart-wrenching.

Even more confusing, she hated that it had to Mirabel of all people. For the longest time, she found the Colombian goddess to be really annoying. To Astrid, she was too soft, too giggly, to much of a defenseless, emotional child. And what kind of domain is "Virginity"? Astrid was a goddess of shield-maidens; of women who took up arms and learned how to fight instead of just being passive observers.

Sure Mirabel was kind of cute, what with her glasses and her smile and the way her curly hair bounced as she danced. And then she saw Mirabel's breasts bouncing as Hiccup fucked her and Astrid's face grew redder and redder with every step she took. Hiccup and Mirabel chased after her, having just barely regained their modesty in an embarrassing display, trying to convince Astrid that what she saw wasn't actually what she saw.

Against her better judgement, she let them talk her out of it.

On one condition.

She dragged both of them to her house -- her family out on their usual duties -- and told them to continue.

They were confused and flummoxed.

"Consider it insurance," said Astrid, her face red but serious too. "If this causes any problems, I'll know for certain."

As embarrassed as the two of them were, they wound up agreeing to it. In fact, the both of them went at it harder and faster. Having a witness actually did it for them.

Astrid was just as into it. Getting a good look at Hiccup's pert, toned ass, Mirabel's ass perfectly curved and in need of a good smacking. Hiccup's abs and pectorals honed from a life of adventure, Mirabel's tits shifting and jiggling with every move she made. It took a lot of power not to start touching herself, her underwear soaked under her leather skirt as her knees rubbed together. Her hands found themselves grabbing her own breasts through her shirt.

Then a second pair of hands tugged her shirt up, exposing her peach-like breasts for all to see. Astrid's lips met with another's. Mirabel's. Astrid had dreams about kissing other girls in the village, but she had thought they were just insane thoughts one only had in passing. But now she's kissing a girl, and she likes it. Especially with the feeling of Mirabel's nipples rubbing against her own.

Mirabel went down and slid off Astrid's skirt and her underwear with it, exposing her pelvis and a small blonde bush hidden with in. Hiccup came around and kissed Astrid and she found it to be just as enjoyable, her hands snaking its way onto his chest.

That very day, Astrid had lost her virginity. She had given it freely to both Hiccup and Mirabel and had accepted her into the relationship.

Astrid wasn't sure if the feelings she had for them were love, but whatever it was, it was strong. Everything Astrid did was strong, and she was hel-bent on protecting the things she cared about, even if it meant defying her chief and keeping this little affair a secret.