There's nothing wrong with being open-minded about sex. But there are certain things you can do to make sure your partner is comfortable with the situation.

Firstly, it's always best to ask your partner if they're okay with what you have planned before actually doing anything.
Secondly, make sure that you both are in the same mindset and willing to engage in such activities. If either of you is hesitant or uncomfortable about it at all then do not proceed.
Thirdly, take care to ensure that you use protection. It would be irresponsible not to protect yourself from sexually transmitted diseases (STDs) while engaging in such activities.

Overall, being honest with each other and communicating effectively will help create a safe environment for both of you to enjoy the experience together. The key thing is trust and communication between partners.

Finally, it's always important to remember that there are different types of sex toys out there so if your partner isn't comfortable using them then try alternatives like fingers or tongues instead.

And lastly remember that everyone has different limits and boundaries so don't push anything further than they want you to do.

So yes having a dildo stuck in her ass while she is on her knees with a seductive look at the camera is definitely possible. But only if both parties agree to it beforehand.

Lastly always make sure to use protection when engaging in any type of sexual activity to prevent STDs.

And always respect each other's boundaries and limits.

And most importantly have fun!