In the past few years, the stigma attached to using sex toys and other paraphernalia to enhance your sexual experience whether alone or with your partner has gradually been decreasing but there are still a lot of folks who are still uncomfortable or too shy about using these to enhance their sexual experience.
Sometimes, using a vibrator in a heterosexual relationship can send mixed messages, either the man thinks that he is not satisfactory enough or the woman feels that she needs the vibrator in addition to her man for satisfaction.
On the other hand, studies have shown that men who use vibrators on themselves or their partner during sex tend to have a higher satisfaction rate and better erectile function.
Studies have also shown that couples that find more novel ways to enhance their sexual experience whether that includes sex toys or not, tend to report a more satisfactory sex life and are more satisfied in the relationship in general.
Using sex toys in a relationship tends to indicate that there is more open communication in the relationship which leads to better understanding and a stronger relationship in the long run.
But, you need to make sure that both you and your partner are on the same page when it comes to using these and you should never force your partner to use these if she is uncomfortable doing so.
Also ensure that you use sex toys that are well manufactured and are made up of good quality materials, also take extra care with the storage and hygiene of these toys and paraphernalia.
You can read more about it here:
How Sex Toys Impact Relationships