She uses her mouth

Luhnasa looked at your penis and then at your face, seeming to think of something she was trying to take courage to do. A few seconds passed, she smiled at you maliciously and lowered her head to start licking the sperm that was still around your penis and in her hand, which made Azura awe. Luhnasaran her tongue around your penis and with two fingers she lowered your foreskin, smiling a little while doing this and passed her tongue around your now exposed glans, which made you shiver.

"Honey, this time take a little longer, okay?" She told you before putting your penis in her mouth, and as it was small it was not difficult for her to do so. It was the first time she did that to you, in fact it was the first time that any girl did that to you, so the feeling of a hot, wet mouth around your penis made you start to feel like coming, even though you came twice recently. Azura seemed to notice this and said:

"Oh no, bro! Not again! She barely started to suck you! Now it's your duty to take it a little longer." But she smirked at you, thinking you couldn't do it and she was right, you were about to come, but at the last moment Luhnasa stopped.

"Hold on for at least a minute, dear." She spoke to you, looking you in the eyes and smiling, as if deep down she knew you weren't capable of it.

"A minute, then?" Azura meddled. "Come on, I hope so." Then she made an illusory hourglass appear in the air, to tell the time. "Not much Warren, you can do it! Go, take a deep breath." You did what she asked. "That, breathes, concentrates and holds on."

"I'll start again, okay, honey?" Luhnasa asked you and didn't wait for you to answer, she started to suck you again, while your sister made the hourglass time start to pass. You tried to hold on more this time, tried to think about other things, problems, but Azura made sure to tease you by lifting her skirt and showing that she was without panties and already wet, without your girlfriend being able to see, since she was busy with your penis. Both stimuli at the same time were too much for you and you ended up cumming in your girlfriend's mouth, without her expecting it. Azura covered herself again and started laughing.

"Fifteen seconds brother?" She laughed again. "Impressive, I must say, ha, ha, but it lasted longer than the other times, so fifteen seconds is kind of your limit, ha, ha." You were, in a way, boiling with anger inside that she was there, tainting a special moment of you and your girlfriend. Azura looked at her and said;

"No, no, darling, don't swallow this quick milk alone, he can't hold it for even a minute. Why don't you share it with him? Yes, a kiss. Give him a kiss. " She laughs and Luhnasa smiles, going to kiss you and flooding your mouth with your own sperm. "Now swallow it, little brother." Without being able to do much, you swallow and Azura claps for you. "Oh, little brother, to be small still go there, which is not your fault, but to come early three times is too much! How are you going to take your girlfriend's virginity that way?"

Luhnasa sits next to you on the bed and gives you a hug.

"Okay, he'll get better, won't he, honey?" She asks you smiling.

"I hope so." Azura answers for you. "But this way I find it very difficult for you to enjoy it girl." She laughs.

"Azura, stop it!" You complain to your sister.

"But that's okay, girl" Azura continues "depending on how our house started this year, you might be able to meet some real penis specimens."

"Hey, what did you mean by that?" You ask suspiciously.

"These are secrets from our house, little brother, secrets from our house, which is a rival to the little one that you ended up in. Now if you'll excuse us, we have to go before we're late and you too, go to the party of those snobs." Azura laughs wryly.