Trouble finds you, in heat

You started to notice your spade being larger than you had thought it was before and a deep need to be bred filling your mind. Too late did you realize not only were you a female dog, but now you were also in heat. You needed to get lost before any male dogs found you and decided to make you their bitch.

"What do we have here butch?" You hear a voice coming up suddenly from behind you. Giving a yip as a cold nose presses against your heated vulva. You turn around quickly to see two obvious male dogs, one a rotweiller and the other a shorter terrier mix.

"Smells like a new bitch in heat Rex." The terrier says smugly. "I get first dibs this round right."

"Not in your life, doubt you could even reach that high anyways. Now if you just turn around, we can help you with that need your feeling." The rotty says grinning.