you were staying over at the quintuplets house and was sleeping in a spare room, miku had woken up to go get a drink and was very sleepy, when she went to go back into her room she went into yours

she snuggles under the blanket with you only in a loose top and some pajama pants, she would sleep peacefully till you feel hot and would then sit up, realising miku had snuck into your bed

miku would also proceed to wake up, you go to say something but she covers your mouth

Shh~