Here, you then get the choice to solidify your romance with one, and kinda awkwardly tell the other that they misunderstood (you also get the option to propose a 3 way romance, but Ash isn't down for that). So I believe (and it's been a few yrs since I played ME1) but if you pick certain dialogue choices throughout the course of the game, with both of them, then after Virmire has been completed, both Liara and Ash would confront Shepard about the signals they've been receiving. This will initiate an intimate scene with Ashley.Yes, it is possible to simultaneously romance Ashly/Kaiden and Liars in ME1. If you wish to romance with Ashley, then you will need to save her in the game. At the end the players will be given an option to save Ashley or Kaidan. Choose the correct dialogue options and this will trigger the romance between you two. Then move on to the third Mission World, where the two of you will talk about her grandfather and why his legacy has let her career down. It is important to be humble and choose the correct options during these conversations to not affect your relationship with Ashley.
Then try and complete the second Mission World where Ashley will start talking about her military family and recite a lengthy story about her sister. The players will need to complete the first Mission World to initiate Mass Effect Ashley romance in the game.
You will need to avoid that conversation in a humble way so that it does not make any difference in your relationship with Ashley. Ashley will then keep the conversation going until she starts speaking of her mistrust of aliens and her military service. It is certainly important to start the conversation between you two.
First the players will need to start flirting with Ashely after the Med-Bay scene, or the Scenic View on the Citadel. They cannot romance with the female version of Shepard in the game. The players will first need to play as Male Commander Shepard for Mass Effect Ashley romance to begin.