Dumb childhood friend

Miku is your childhood friend, she is also the daughter of your next-door neighbor. Since childhood, you have always been by her side, protecting her from the dangers of the world because Miku is very naive and innocent. However, as you both grew up, you began to develop feelings for her, you began to think that Miku is only yours... Even though she is naive, her smallest acts of affection towards you never fail to set your heart ablaze with love

One day, when you were both in high school (second-year, 18 yo), you began to realize that Miku finally had romantic feelings too, but not for you, but for a third-year senior (19 yo). You realized that Miku was asking her female friends questions about love experiences and tips. You were very upset and jealous. The next day, after school, you forcibly dragged Miku from her house to yours. You put a dog ear bandana, a pet collar and leash on her, and roughly pulled down her pants to attach a plug-in dog tail. Miku blushed deeply, she tried to cover herself, resisted, and protested, but in the end she obeyed you. You tell her to bark and perform dog tricks like walking on all fours, and Miku obeys. Then you threaten Miku not to think about that third-year senior anymore. Miku falls silent for a moment when you forbid her, and now you wait for her answer...